823255 has 8 divisors (see below), whose sum is σ = 993600. Its totient is φ = 654816.

The previous prime is 823243. The next prime is 823261. The reversal of 823255 is 552328.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 823255 - 2⁷ = 823127 is a prime.

823255 is a lucky number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 786 + ... + 1504.

It is an arithmetic number, because the mean of its divisors is an integer number (124200).

2⁸²³²⁵⁵ is an apocalyptic number.

823255 is a deficient number, since it is larger than the sum of its proper divisors (170345).

823255 is a wasteful number, since it uses less digits than its factorization.

823255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 953.

The product of its digits is 2400, while the sum is 25.

The square root of 823255 is about 907.3340068575. The cubic root of 823255 is about 93.7227001993.

The spelling of 823255 in words is "eight hundred twenty-three thousand, two hundred fifty-five".